| Patents for C07C 55 - Saturated compounds having more than one carboxyl group bound to acyclic carbon atoms (3,355) |
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| 04/26/2000 | EP0994842A1 Recovery of fermentation salts from dilute aqueous solutions |
| 04/25/2000 | CA2137537C Process for preparing an iridium solution; solution thus obtained and use thereof as a catalyst |
| 04/19/2000 | CN1250769A Clean catalytic oxidization process for synthesizing adipic acid |
| 04/06/2000 | WO2000001647A3 Production of organic compounds which are low in fluoride |
| 03/29/2000 | EP0988274A1 Carboxylic acids and derivatives thereof and pharmaceutical compositions containing them |
| 03/29/2000 | EP0966421A4 A method for purification of acids for use in semiconductor processing |
| 03/23/2000 | WO2000015598A1 Method for separating and purifying carboxylic acid derived from the direct oxidation of a hydrocarbon |
| 03/23/2000 | WO2000015597A1 Method for crystallising carboxylic acid |
| 03/23/2000 | CA2343013A1 Method for separating and purifying carboxylic acid derived from the direct oxidation of a hydrocarbon |
| 03/23/2000 | CA2343012A1 Method for crystallising carboxylic acid |
| 03/21/2000 | US6039902 Methods of recycling catalyst in oxidations of hydrocarbons |
| 03/21/2000 | CA2062976C Use of sebacic acid and derivatives thereof in enteral and parenteral nutrition and pharmaceutical compositions containing said compounds |
| 03/14/2000 | US6037493 Optically active diphosphines, preparation thereof according to a process for the resolution of the racemic mixture and use thereof |
| 03/14/2000 | US6037491 Maintaining the reaction rate or reactivity in a desired range to efficiently oxidize hydrocarbon to a diacid which can be reacted with a diol, diamine, or diamide to form polyesters, polyamides, or polyimides respectively |
| 03/14/2000 | US6037477 Oxidation process of ethers |
| 03/02/2000 | WO2000011008A1 Asymmetric catalysis based on chiral phospholanes |
| 03/02/2000 | CA2340943A1 Asymmetric catalysis based on chiral phospholanes |
| 02/23/2000 | CN1049648C Method for producing aliphatic dicarboxylic acid from hydroxycarbonlation of lactone |
| 02/16/2000 | CN1244853A Methods for preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator |
| 02/15/2000 | CA2022037C Improved carboxylic acid purification and crystallization process |
| 02/01/2000 | USRE36549 Distillation fatty acid; oxidation |
| 01/19/2000 | EP0971881A1 Process for the preparation of n-(3-hydroxy-succinyl)-amino acid derivatives |
| 01/19/2000 | EP0971869A1 Low water diamine/dicarboxylic acid salt preparation |
| 01/19/2000 | CN1048481C Technological process of preparing fatty acid with the side product from sebacid acid |
| 01/19/2000 | CN1048480C Synthetic method of cyclohexanol, cyclohexanone and adipic acid |
| 01/18/2000 | US6015924 Deperoxidizing washing waters by catalytic hydrogenation,oxidizing product with nitric acid |
| 01/13/2000 | WO2000001656A1 Methods of extracting catalyst from a reaction mixture in the oxidation of cyclohexane to adipic acid |
| 01/13/2000 | WO2000001655A1 Methods of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid |
| 01/13/2000 | WO2000001654A1 Method of producing an aliphatic diacid and nitrous oxide |
| 01/13/2000 | WO2000001647A2 Production of organic compounds which are low in fluoride |
| 01/13/2000 | CA2337792A1 Methods of separating catalyst in solution from a reaction mixture produced by oxidation of cyclohexane to adipic acid |
| 01/13/2000 | CA2336812A1 Production of organic compounds which are low in fluoride |
| 01/13/2000 | CA2336461A1 Method of producing an aliphatic diacid and nitrous oxide |
| 01/13/2000 | CA2336396A1 Methods of extracting catalyst from a reaction mixture in the oxidation of cyclohexane to adipic acid |
| 01/12/2000 | EP0970032A1 Method for preparing cleaved products from castor oil or derivatives thereof |
| 01/11/2000 | US6013816 Hydroformylating unsaturated c.sub.4-c.sub.12 carboxylic acid, ester, or nitrile to produce linear .omega.-formyl-carboxylic acid or linear formyl nitrile in presence of water, carbon monoxide, hydrogen and catalyst |
| 01/11/2000 | CA2055282C Process for the preparation of rare-earth and ammonium twin oxalates, their use in preparing rare-earth oxides, and rare-earth oxides thereof |
| 01/06/2000 | CA2276899A1 Methods of treating the oxidation mixture of hydrocarbons to respective dibasic acids |
| 01/05/2000 | EP0968167A1 Dicarboxylic acid crystallizates |
| 12/29/1999 | EP0966421A2 A method for purification of acids for use in semiconductor processing |
| 12/29/1999 | EP0833809B1 Nitric acid hydrolysis of polyamides |
| 12/28/1999 | US6008408 Hydroxycarbonylation of pentenoic acids to adipic acid by carbon monoxide and water in presence of a catalyst containing iridium and or/rhodium and atleast iodonated promoter |
| 12/28/1999 | US6007649 Method of producing press-moulding materials with polyisocyanate binders and using latent, heat-activable catalysts |
| 12/16/1999 | WO1999044707A3 Purification of organic acids using anion exchange chromatography |
| 12/15/1999 | CN1047381C sodium oxalate producing process and equipment through double-circulation continuous dehydrogenation in triphase fluid bed |
| 12/15/1999 | CN1047379C Process for preparing alpha, alpha'-dichloro-hexandioic acid |
| 12/14/1999 | US6002040 Providing aqueous stream by means of liquid spray nozzles |
| 12/09/1999 | WO1999062917A1 Production of optically active phospholanes |
| 12/08/1999 | EP0765857B1 Process for producing optically active alpha-substituted carboxylic acid derivatives |
| 12/07/1999 | US5998572 Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating temperature/conversion relationship in multi-stage arrangements |
| 12/07/1999 | US5997833 Apparatus and process for purifying highly impure calcium hydroxide and for producing high-value precipitated calcium carbonate and other calcium products |
| 12/02/1999 | DE19824121A1 Herstellung optisch aktiver Phospholane, deren Metallkomplexe und Anwendung in der asymmetrischen Synthese Preparation of optically active phospholanes, their metal complexes and application in asymmetric synthesis |
| 11/25/1999 | WO1999059953A1 Controlled oxidation of hydrocarbons to intermediate oxidation products |
| 11/25/1999 | CA2331663A1 Controlled oxidation of hydrocarbons to intermediate oxidation products |
| 11/17/1999 | CN1235592A Manufacture of adipic acid |
| 11/16/1999 | US5986133 Recovery of fermentation salts from dilute aqueous solutions |
| 11/10/1999 | CN1046264C Carboxylic acid isomerisation method |
| 11/09/1999 | US5981420 Oxidation catalysts system consists of an n-hydroxy or n-oxy imide compound and a transition metal compound excluding a polyacid as cocatalyst |
| 11/09/1999 | US5980801 Oxidizing hydrocarbon and initiator mixture form compound selected from phthalic acid, adipic acid, isophthalic acid, terephthalic acid; reacting compound with polyol,or polyamine or polyamide to form polyester, or polyamide or polyimide |
| 10/26/1999 | US5972306 Cobalt (II) oxide containing cobalt metal, a process for producing it and its use |
| 10/06/1999 | EP0946494A1 Preparation of nylon salts from diamine carbamates and dicarboxylic acids |
| 10/06/1999 | EP0946466A1 Methods of preparing an intermediate oxidation product from a hydrocarbon by utilizing an activated initiator |
| 10/06/1999 | EP0946283A1 Methods and devices for controlling the oxidation rate of a hydrocarbon by adjusting the ratio of the hydrocarbon to a rate-modulator |
| 10/06/1999 | EP0946281A1 Methods and devices for controlling the oxidation of a hydrocarbon to an acid by regulating hold-up time in multi-stage arrangement |
| 10/06/1999 | EP0783479B1 Conversion of nylon 6 and/or nylon 6,6 to adipic acid |
| 09/30/1999 | WO1999037599A3 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids |
| 09/29/1999 | CN1045277C Method of generated no from air flow containing N2O |
| 09/21/1999 | CA2004960C Isomerization of carboxylic acids |
| 09/15/1999 | EP0772581B1 Method of recycling a catalyst in a reaction involving the direct oxidation of cyclohexane into adipic acid |
| 09/14/1999 | US5952517 Method for preparing cleaved products from castor oil or derivatives thereof |
| 09/10/1999 | WO1999044980A1 Method for separating and purifying adipic acid |
| 09/10/1999 | WO1999044707A2 Purification of organic acids using anion exchange chromatography |
| 09/10/1999 | CA2322701A1 Method for separating and purifying adipic acid |
| 09/10/1999 | CA2321759A1 Purification of organic acids using anion exchange chromatography |
| 09/08/1999 | EP0799155B1 Manufacture of carbonyl fluoride |
| 09/01/1999 | CN2335968Y Sebacic acid granulating tower |
| 08/31/1999 | CA2158006C Hydrocarbonylation of dimethyl ether |
| 08/26/1999 | WO1999042430A1 Methods and devices for separating catalyst from oxidation mixtures |
| 08/26/1999 | WO1999042282A1 A-site and/or b-site modified pbzrtio3 materials and films |
| 08/26/1999 | CA2319564A1 Methods and devices for separating catalyst from oxidation mixtures |
| 08/25/1999 | EP0937025A1 Manufacture of adipic acid |
| 08/18/1999 | CN1226185A Method and device for oxidizing hydrocarbon to acid |
| 08/12/1999 | WO1999040058A1 Process for treating cobalt catalyst in oxidation mixtures of hydrocarbons to dibasic acids |
| 08/12/1999 | CA2318741A1 Process for treating cobalt catalyst in oxidation mixtures of hydrocarbons to dibasic acids |
| 08/04/1999 | EP0789682B1 Catalyst recovery and dialkyl ester synthesis from an adipic acid synthesis waste stream |
| 07/29/1999 | WO1999037599A2 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids |
| 07/29/1999 | CA2313107A1 Methods and devices for separating catalyst from oxidation mixtures containing dibasic acids |
| 07/28/1999 | EP0797562B1 Crystallization of adipic acid |
| 07/27/1999 | US5929277 Methods of removing acetic acid from cyclohexane in the production of adipic acid |
| 07/21/1999 | EP0877767B1 Method of producing press-moulding materials with polyisocyanate binders and using latent, heat-activable catalysts |
| 07/21/1999 | CN1223635A Pentenoic acid hydroxycarbonylation method |
| 07/21/1999 | CN1223634A Method for purifying adipic acid by crystallization |
| 07/21/1999 | CN1223633A Method for purifying adipic acid in water |
| 07/20/1999 | US5925679 Glycol base with azelaic acid and acid ph for skin disorders like acne, hair loss and wrinkling |
| 07/14/1999 | EP0928783A1 Process for preparing dichlorofluoroacetyl halides |
| 06/30/1999 | EP0925267A1 Racemization process for optically active carboxylic acids or salts or esters thereof |
| 06/30/1999 | CN1221410A Novel substituted 2,4-thiazolidine diketone derivatives, method for preparation thereof and pharmaceutical compositions containing the same |
| 06/16/1999 | CN1219530A Method for refining long-chain bibasic acid |
| 06/15/1999 | CA2093752C Integrated process for oxygenated acetyl compounds from synthesis gas via dimethyl ether |
| 06/10/1999 | WO1999028286A1 Process to separate rhodium from an organic mixture |